.net core api在返回json数据时，出现错误，转json不断shi循环。

靓仔建2025-12-07 10:06

1，错误信息：

A possible object cycle was detected. This can either be due to a cycle or if the object depth is larger than the maximum allowed depth of 32. Consider using ReferenceHandler.Preserve on JsonSerializerOptions to support cycles. Path: $.Data.User.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users

翻译后的意思：

检测到可能的对象循环。这要么是由于存在循环，要么是因为对象深度超过了允许的最大深度 32。请考虑在 JsonSerializerOptions 中使用 ReferenceHandler.Preserve 来支持循环。路径：$.Data.User.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users.Company.Users

2，解决方法：

在添加控制器后面加AddJsonOptions()方法，参考下面代码：

cs 复制代码

// 2. 添加控制器
builder.Services.AddControllers().AddJsonOptions(options =>
{
    options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles;
    options.JsonSerializerOptions.DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull;
});

谢谢观看，不是在改Bug路上，就是制造bug缔造者！